Well I only ordered the extra PRR coach. I am almost paid off with it and I am debating on whether or not to get the extra PRR sleeping car. I still owe on the army comm, hospital, and surgical cars.... Plus the Heavyweights.
Unless GGD comes up with some more PRR cars, I will be done unless I get a hold of their 2008 PRR Broadway LTD sets.
check public delivery track. higher prices but may have what you are looking for.